Test L: The Blower Motor Is Inoperative - Manual Climate Control

PINPOINT TEST L: THE BLOWER MOTOR IS INOPERATIVE - MANUAL CLIMATE CONTROL

L1:

L1-L3:

L3-L5:

L6-L7:

L8:

Normal Operation
Under normal operation, the blower motor relay coil receives ignition voltage through circuit 296 (WH/VT). The blower motor relay coil receives ground from the function selector switch through circuit 399 (BN/YE) if any position but OFF is selected. The function selector switch is grounded through circuit 57 (BK). Voltage is supplied to the relay switch contact through circuit 364 (BK/LG). When the relay coil is energized, voltage is delivered to the blower motor through circuit 181 (BN/OG). Ground for the blower motor is provided through circuit 261 (OG/BK) from the blower resister or the blower switch (HI). The blower resister and blower switch is grounded through circuit 57 (BK).

Possible Causes
- An open in circuit 57 (BK), 181 (BN/OG), 261 (OG/BK), 296 (WH/VT), 364 (BK/LG) or 399 (BN/YE)
- Fuse(s)
- Blower motor
- Blower motor relay
- Function selector switch